Echange_impose_base.h

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#ifndef Echange_impose_base_included
#define Echange_impose_base_included
 
#include <Cond_lim_base.h>
#include <TRUSTTab.h>
 
/*! @brief classe Echange_impose_base: Cette condition limite sert uniquement pour l'equation d'energie.
 *
 *     Elle correspond a imposer un echange de chaleur avec l'exterieur
 *     du domaine en imposant une temperature exterieure T_ext et un
 *     coefficient d'echange h_imp.
 *     Le terme de flux calcule a partir du couple(h_imp,T_ext) s'ecrit :
 *                            h_t(T_ext - T_entier)*Surf
 *                           avec h_t : coefficient d'echange global.
 *     Il figure au second membre de l'equation d'energie.
 *     Soit l'utilisateur donne un coefficient d'echange qui correspond
 *     uniquement a la paroi, auquel cas le programme calculera la diffusion
 *     sur la demi-maille pres de la paroi, soit il donne un coefficient
 *     d'echange global qui tient compte directement des deux precedents.
 *     Les deux classes derivees Echange_externe_impose et Echange_global_impose
 *     representent ces deux possibilites.
 *
 * @sa Cond_lim_base Echange_externe_impose Echange_global_impose
 */
class Echange_impose_base : public Cond_lim_base
{
  Declare_base_sans_constructeur(Echange_impose_base);
public:
 
  inline bool has_emissivite() const { return bool(emissivite_); }
  inline bool has_h_imp() const { return bool(h_imp_); }
 
  const DoubleTab& tab_T_ext(double temps=DMAXFLOAT) const;
  const DoubleTab& tab_h_imp(double temps=DMAXFLOAT) const;
  const DoubleTab& tab_emissivite(double temps=DMAXFLOAT) const;
  virtual double T_ext(int num) const;
  virtual double T_ext(int num,int k) const;
  virtual double h_imp(int num) const;
  virtual double h_imp(int num,int k) const;
  double emissivite(int num) const;
  double emissivite(int num,int k) const;
 
  /*! @brief Renvoie le champ T_ext de temperature imposee a la frontiere.
   *
   * @return (Champ_front_base&) le champ T_ext de temperature imposee a la frontiere
   */
  inline virtual Champ_front_base& T_ext() { return le_champ_front.valeur(); }
  inline virtual const Champ_front_base& T_ext() const { return le_champ_front.valeur(); }
 
  inline virtual Champ_front_base& h_imp() { assert (has_h_imp()); return h_imp_.valeur(); }
  inline virtual const Champ_front_base& h_imp() const { assert (has_h_imp()); return h_imp_.valeur(); }
 
  inline Champ_front_base& emissivite() {  assert (has_emissivite()); return emissivite_.valeur(); }
  inline const Champ_front_base& emissivite() const  {  assert (has_emissivite()); return emissivite_.valeur(); }
 
  // Utilise dans les CAL de calcul des flux pour les lois de paroi
  virtual void liste_faces_loi_paroi(IntTab&) { }
 
  void mettre_a_jour(double ) override;
  int initialiser(double temps) override;
  int a_mettre_a_jour_ss_pas_dt() override { return 1; }
 
  // ajout de methode pour ne pas operer directement sur champ_front
  void set_temps_defaut(double temps) override;
  void fixer_nb_valeurs_temporelles(int nb_cases) override;
  //
  void changer_temps_futur(double temps,int i) override;
  int avancer(double temps) override;
  int reculer(double temps) override;
  void associer_fr_dis_base(const Frontiere_dis_base& ) override ;
 
  virtual bool has_h_imp_grad() const { return false; }
  virtual double h_imp_grad(int num) const { Process::exit(que_suis_je()+ " : h_imp_grad must be overloaded !" ) ; return -1.e10 ;};
  virtual double h_imp_grad(int num,int k) const  { Process::exit(que_suis_je()+ " : h_imp_grad must be overloaded !") ; return -1.e10 ;};
 
protected :
  OWN_PTR(Champ_front_base) h_imp_, emissivite_ /* si Echange_externe_radiatif */;
private:
  // Stocke toutes les valeurs sur les faces (utile pour GPU):
  mutable DoubleTab text_;
  mutable DoubleTab himp_;
  mutable DoubleTab eps_;
};
 
#endif /* Echange_impose_base_included */